/* Scoped overlay styles. Existing home, splash, writer, and veil stay intact. */
#automataMergeOverlay{width:min(700px,calc(100vw - 32px));max-height:calc(100vh - 48px);padding:0;border:1px solid var(--line,#e3e8ef);border-radius:var(--r-lg,14px);background:var(--card,#fff);color:var(--ink,#1f2937);box-shadow:var(--shadow-lg,0 12px 32px #10203d22);overflow:auto;font:14px -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
#automataMergeOverlay::backdrop{background:#0e1f3d70}
#automataMergeOverlay[open]{animation:amOverlayIn 240ms ease-out both}
#automataMergeOverlay[open]::backdrop{animation:amBackdropIn 240ms ease-out both}
#automataMergeOverlay[open].am-closing{animation:amOverlayOut 180ms ease-in both}
#automataMergeOverlay[open].am-closing::backdrop{animation:amBackdropOut 180ms ease-in both}
#automataMergeOverlay .am-stage[open] .am-stage-body{animation:amStageIn 180ms ease-out both}
@keyframes amOverlayIn{from{opacity:0}to{opacity:1}}
@keyframes amOverlayOut{from{opacity:1}to{opacity:0}}
@keyframes amBackdropIn{from{opacity:0}to{opacity:1}}
@keyframes amBackdropOut{from{opacity:1}to{opacity:0}}
@keyframes amStageIn{from{opacity:0}to{opacity:1}}
@media(prefers-reduced-motion:reduce){
  #automataMergeOverlay[open],#automataMergeOverlay[open]::backdrop,
  #automataMergeOverlay[open].am-closing,#automataMergeOverlay[open].am-closing::backdrop,
  #automataMergeOverlay .am-stage[open] .am-stage-body{animation:none}
}
#automataMergeOverlay header{padding:24px;display:flex;justify-content:space-between;align-items:start;gap:16px;border-bottom:1px solid var(--line,#e3e8ef)}
#automataMergeOverlay h2{font-size:22px;margin:8px 0;color:var(--navy,#16305a);line-height:1.3}
#automataMergeOverlay p{margin:0;line-height:1.6;overflow-wrap:anywhere}
#automataMergeOverlay .am-eyebrow{font-size:10px;font-weight:700;letter-spacing:1.5px;color:var(--blue,#2b6cb0)}
#automataMergeState{font-size:12px;white-space:nowrap;color:var(--blue,#2b6cb0)}
#automataMergeStudent{font-size:13px;color:var(--muted,#6b7280)}
#automataMergeOverlay .am-overview{padding:22px 24px;background:var(--sunken,#f8fafc)}
#automataMergeOverlay .am-overview>div{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}
#automataMergePercent{font-size:25px;font-variant-numeric:tabular-nums;white-space:nowrap}
#automataMergeOverlay progress{appearance:none;display:block;width:100%;height:7px;border:0;border-radius:8px;overflow:hidden;background:var(--line,#e3e8ef);color:var(--blue,#2b6cb0)}
#automataMergeOverlay progress::-webkit-progress-bar{background:var(--line,#e3e8ef)}
#automataMergeOverlay progress::-webkit-progress-value{background:var(--blue,#2b6cb0);border-radius:8px}
#automataMergeOverlay progress::-moz-progress-bar{background:var(--blue,#2b6cb0)}
#automataMergeCount{display:block;margin-top:10px;color:var(--muted,#6b7280);font-size:11px;line-height:1.6}
#automataMergeStages{padding:4px 16px}
#automataMergeOverlay .am-stage{border-bottom:1px solid var(--line,#e3e8ef)}
#automataMergeOverlay .am-stage:last-child{border-bottom:0}
#automataMergeOverlay summary{padding:17px 8px;cursor:pointer;font-size:13px;font-weight:600}
#automataMergeOverlay .am-stage-state{float:right;font-size:11px;font-weight:400;margin-left:12px;color:var(--muted,#6b7280)}
#automataMergeOverlay .am-stage-body{padding:0 10px 16px}
#automataMergeOverlay .am-stage-body progress{height:4px;margin:0 0 14px}
#automataMergeOverlay ul{list-style:none;padding:0;margin:0;display:grid;gap:12px}
#automataMergeOverlay li{display:flex;align-items:start;gap:9px;font-size:12px;line-height:1.5}
#automataMergeOverlay li>span:nth-child(2){flex:1;overflow-wrap:anywhere}
#automataMergeOverlay .am-mark{width:18px;flex:none;text-align:center}
#automataMergeOverlay .am-task-state{font-size:11px;color:var(--muted,#6b7280);white-space:nowrap;font-variant-numeric:tabular-nums}
#automataMergeOverlay [data-state=done]>.am-mark,#automataMergeOverlay .am-stage[data-state=done] .am-stage-state{color:var(--ok,#1f7a4d)}
#automataMergeOverlay [data-state=error]>.am-mark,#automataMergeOverlay .am-stage[data-state=error] .am-stage-state{color:var(--danger,#c1272d)}
#automataMergeMessage{padding:16px 24px;border-top:1px solid var(--line,#e3e8ef);font-size:12px;background:var(--blue-soft,#ebf3fb)}
#automataMergeOverlay[data-state=error] #automataMergeMessage{background:var(--danger-soft,#fdeeee);color:var(--danger,#c1272d)}
#automataMergeOverlay[data-state=complete] #automataMergeMessage{background:var(--ok-soft,#e8f6ee);color:var(--ok,#1f7a4d)}
#automataMergeOverlay footer{padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:11px;color:var(--muted,#6b7280)}
#automataMergeClose{padding:9px 18px;border:1px solid var(--line,#e3e8ef);border-radius:8px;background:var(--navy,#16305a);color:white;font:inherit;cursor:pointer}
#automataMergeClose:disabled{opacity:.45;cursor:default}
#automataMergeOverlay :focus-visible{outline:2px solid var(--blue-bright,#3182ce);outline-offset:2px}
@media(max-width:480px){#automataMergeOverlay header,#automataMergeOverlay footer,#automataMergeOverlay .am-overview{padding:16px}#automataMergeOverlay h2{font-size:19px}#automataMergeStages{padding:4px 8px}#automataMergeOverlay .am-stage-state{float:none;display:block;margin:5px 0 0 16px}#automataMergeOverlay li{font-size:11px}}